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J Korean Acad Rehabil Med. 2004 Oct;28(5):462-468. Korean. Original Article.
Kim S , Kim SJ , Jang SH , Choi KS , Park SB .
Department of Physical Medicine and Rehabilitation, Hanyang University College of Medicine, Korea. sibopark@hanyang.ac.kr
Department of Biomedical Engineering, Hanyang University College of Medicine, Korea.
Department of Physical Medicine and Rehabilitation, Soonchunhyang University College of Medicine, Korea.
Abstract

OBJECTIVE: To evaluate the influence of weight-bearing on foot shape measured by 3-D foot scanner. METHOD: Forty-two feet of twenty-one normal subjects were studied. The foot length, width, girth and arch parameters under non weight-bearing and weight-bearing conditions were measured by 3-D foot scanner (Nexcan(R), K & I, Korea), analysis software (EnFOOT(r), K & I, Korea) and 3-D foot arch measurement program. RESULTS: The foot length, ball width, ball girth, waist girth, instep girth, short heel girth, long heel girth and length from heel point to proximal arch point significantly increased under weight-bearing condition (p<0.01). However, vamp height, waist height, instep height, length of arch, height of arch, width of arch, length from heel point to distal arch point, maximal arch height and volume of arch were significantly decreased under 50% weight-bearing condition (p<0.01). CONCLUSION: Foot parameters associated with length, width and girth increased but volume, width, length, and height of medial longitudinal arch decreased under weight bearing condition. We suggest that these findings under weight- bearing condition result from the pronation of subtalar joint and the decrement of heights of transverse and longitudinal arch heights.

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